Eye-testing device



May 14, 1929. B. D. RITHOLZ EYE TESTING DEVICE Filed Feb. 12, 1927 I Zll li atented May 14, 1929.

STATES PATENT OFFlCE.

IlEIElI l'Zl'AMItN D. RITHOLZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIDILYAL WATCH 8c JEWELRY (.70., O1? CHICAGO, ILLINOIS, A CORPGRATION 01E ILL'JIETMUIS.

EYE-TESTING DEVICE.

.l'tpplication filed February 12, 1927. Serial No. 167,835.

This invention relates to eye testing devices and object to provide a novel device of simple constrinztion which can be easily operateil tor testing eyes so that any individual may determine the in formation necessary to enable an optieian to make the proper lenses tor corrci inp; detects of sight.

It d a 'lnrther object oi? the invention is to pro do an eye testing device of simple conetriniztion which can be manufactored at low cost and tarnished Without cost to individuals tor testing; their own eyes and which can he :iolded in con'ipart term for transn'iission through the n'mile. l have .'..l.ustrated the invention in several terms in the SCCOlTlPHJIY inc drawings and referring thereto:

liig. l a perspective view of a preferred term of the invention. in open position ready tor use.

lbipg. 2 ill [nitrates this Form of the ii'ivention partly folded.

Fig. 3 shows the device of lligs. l. and 2 'lllhlfill .ln liigs. 1 3 the device made oi cardboard and comprises an eye member 8 and a chart member 9 which are 'l'ioldably mounted on the enter ends of a flexible connecting member which con'iprises two parts '10, 1.0 :tohlablc at 11. llhc eyc member 8 is hinged it, to the flexible connecting member 10 so that it 311T! be toldcd upon this member, or swung;- to nprioht operative positive position, as shown i n l The eye member has a projection .13 \vhich is cut out at let from the connecting member 10 and which projects below the connecting ineinber and forms a handle to tacilitate use oi? the device when the eye member is in operative position. T he eye .li'iemberhas an opening 15 through which the chart on the chart member 9 may be read, and. this chart member is toldably hinged at 16 tov the connecting; member and like the eye i'neinber also provided with a projection 17 out out at 18 :lrom the connecting; member 10 to form a handle like the handle projection 13 on the eye member. The hinges 12, 16 and 11. may be made by scoring the cardboard so that the parts can be folded on the score lines, but these hinge connections may be reinforced by pasting fabric material thereover on the enter side oil: the device, 5 indicated at 19. llho several parts may be made separate and hinged together in the same manner it desired. This cardboard device may be folded in compact form, as shown in Fig. 3 and opened. to operative position, as shown in Fig. 1.

My invent-ion provides a SllTl]')lt, and ine'ie pensive device which ran be easily used by any individual. tor detcrn'iining defects at sight. The connecting n'len'rber will, preterably be made to space the eye member avail the chart member approxiniately thirteen incl res apart so that the chart may be eighted through the openin in the eye member at standard reading; 6 tance. The chart member will. he provided Wi th a standard eye clni rt and each line will bear a, lens number by which classes may be ordered. The device embodies a pivotal 'l'chflable mounting oil? the. eye member and the chart member relative to the connecting member, and embodies a flexible connection between the eye member and the chart member, and is capable of being; tohled in (.zempact form for mailing, and is adapted to be opened into operative position Without reipiiri cg any special shill,

I claim:

1. A. n eye testin device con'nprisin n'iember, a conni no stri p loli'lably connect-- ed with the chart member, an eye inenil'ier foldably connected with the coni'iecting' strip, one of sai d members having); a handle projection eat out oi the connecting strip.

2. An eye testing device eon'iprrieungg a connecting member, an. eye nien'iber :lioldabl y connected to the connecting ine'mi'ier, and achart member toldably connected to the connecting member, said chart member and said e e mentber each havng a handle projection cat out of the connecting; member.

3. An eye toting: device comprising an eve member, a chart inen'iber, and a. connecting n'ieinber positioned ii'itermediate the eye meniher and chart member, all said members being, il'orn'ied from a single piece of material, the eye member and chart niiember being toldably cngaged With the ends of the connecting member and said connecting member comprising tvvo correeponding parts arranged. end to end and told able one open the other,

4;. An eye testing devieeeompr '1 g IllGHllJBl', a chart member, and a connect 1g member extending; between the eye and chart members, one of the two last llIlGll'tlOl'lGLl members being); hinged to the connecting); n'ienlber and provided with a handle projecting at the hinged end ot the hinged member and in the plane thereof, the connecting; men'iber lieing cut out to receive the handle nien'iher when a chart Eli] the hinged member is folded into the plane of the connecting member.

5. 'An eye testing device made from a single blank and comprising an intermediate con- 5 neoting member and terminal eye and chart members hinged to the ends of the connecting member, each terminal member being provided at its hinged end with an integral handle portion cut from the connecting member, said handle member capable of lying in the out out in the end of the connecting member formed by cutting out the handle member.

BENJAMIN D. RITHOLZ. 

